How to Troubleshoot & Replace Whirlpool AP5983729 / 661570V Whirlpool Drive Belt

I replaced both the pulleys. 

I ordered the dryer repair kit that included the drum belt, 4 drum support rollers, idler pulley, tri rings, washer, and instruction sheet. 

Pulled the back off. 

With a little help from YouTube able to identify the problem, order the correct part and fix for about $20. 

I purchased these items after I performed a quick troubleshooting of the dryer. I watched the video after submitted the model number and it was spot on correct with my issues. Thank you for your help. 

Followed video online step by step and replaced belt 

I figured it was one of two things: The idler pulley or the drum support rollers. I ordered these parts and a belt (the dryer is about 13 years old). I watched the repair videos on this site and followed along step by step. After getting the dryer disassembled, I discovered that the source of the noise was one of the drum support rollers. The bearing had cracked and the wheel had completely come off of the bearing. I replaced all the parts that I had ordered and put it all back together and now we're back to the quiet hum we had been used to when drying our clothes! 

I removed the top and back of the dryer to get to the drum. Removed it to replace all rollers, drum belt and tensioner. I pulled off the old felt seals, sanded surface with an electric drill and 3 inch scuz wheel down to the white paint. Wiped the area with brake clean and let dry. Followed the directions on the tube of adhesive and reglued new felt seals. Reassembled dryer and it works fine at this time. While the repair process is going on, I took the opportunity to vacuum out all the lint and dirt to prevent a fire.. All is good. 

Watched an appliance parts pros video. Was exactly what I needed to get the job done quickly and easy! Took me about one hour to get everything apart and pull out the damaged parts. About the same time to put it all back together. My dryer runs like new. Than you appliance parts pro! 

The code was not the issue but the customer service rep helped us figure out what the problems were. Horrible squealing and rattling coming from the dryer and it was blinking the code. She sent me parts breakdowns so that we could order what we needed. Shipping was fast. From the DFW area so we got it next day in Texas. Watched the repair done in the website which helped a bunch.